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Fig. 1

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Fig. 2

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Fig. 3

Cortebert 451 (AS 1250)

automatic (bumper)
sweep second

11''', Dm=Do= 24.8mm
H= 5.55mm
F= 0.65mm (backside plate edge)
T= 1.5mm
17 jewels
f = 18000 A/h
power reserve 32h

Balance staff U2137

Stem W2328

Mainspring / battery
Zf924, 1.35 x 7.0 x 0.08 x 220mm

1.30 x 0.80 x 0.21mm

Comments about the data

crown mechanism and escapement from Cortébert
detached manual wind
cap jewel for escape wheel

Example, year: signature; shock device
ca. 1950: Cortebert, Cal.451, Swiss Made, 17 Jewels - Brevet +, 1250, AS; Incabloc

Not for Sale!
The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating.

bidfun-db 21.3 © 02-08-15, mtr-Ranfft

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